Factual error: In order to be electrocuted you need to connect a high voltage to a low voltage. Touching a power line does not get you electrocuted unless you make contact with the ground. So electrocuting the locusts by making them fly against a powerline can not work because they are not 'grounded'.
Factual error: Peter is standing next to his daughter's hospital bed, talking on his cell phone to the meteorologist, and none of the hospital employees that walk past him tell him to turn off the phone. Everyone knows that cell phone use is not permitted in hospitals; as on planes, it's thought they can cause vital equipment to malfunction.